Cho nguyên dương, trong các mệnh đề sau mệnh đề nào sai ?

a.for lorena 14 hours makes $126   for 16 hours she makes 144

for julie 6 hours makes $72 for 21 hours its $252

b. julie makes more money than lorena julie makes $12 an hour and lorena makes $9  

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okey so the slope is -3/5 and the y -intercept is 7/5

hope this if needed hmu

1350 hats

step-by-step explanation:

divide 900 by 2 to find 50% or half of 900

900/2=450

add 450 to 900

1350